<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>浏览器任务管理器监控内存变化</title>
</head>
<body>
    <button id="btn">点我</button>

    <script>
        const btn = document.getElementById("btn")
        btn.onclick = function () {
            let arrlist = new Array(1000000)
        }
    </script>
</body>
</html>